Characteristics of fluoride adsorption onto aluminium(III) and iron(III) hydroxide flocs

被引：10

作者：

Hamamoto, Shinya ^{[1
]}

Kishimoto, Naoyuki ^{[2
]}

机构：

[1] Ryukoku Univ, Grad Sch Sci & Technol, Dept Environm Solut Technol, 1-5 Yokotani,Setaoe Cho, Otsu, Shiga 5202194, Japan

[2] Ryukoku Univ, Fac Sci & Technol, Dept Environm Solut Technol, Otsu, Shiga, Japan

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2017年 / 52卷 / 01期

关键词：

Adsorption; fluoride removal; hydroxide floc; SEMICONDUCTOR WASTE-WATER; ENDEMIC FLUOROSIS; AQUEOUS-SOLUTION; NATURAL-WATERS; REMOVAL; FLOTATION; ALUMINA; OXIDE; ELECTROCOAGULATION; DEFLUORIDATION;

D O I：

10.1080/01496395.2016.1242628

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The fluoride adsorption onto the hydroxide flocs of Al(III), Fe(III), or a mixture of the two was studied. The optimum pH was influenced by the flocs' solubility and surface charge. Although the Al(III) hydroxide flocs had a maximum adsorption capacity at the equilibrium concentration of 8 mg-F/L, the two-stage adsorption process revealed that the mixture of the Al(III) and Fe(III) hydroxide flocs required the smallest adsorbent dose as the concentration changed from 40 to 8 mg-F/L. Thus, the simultaneous dosing of Al(III) and Fe(III) combined with a two-stage adsorption process appears to be an effective option for fluoride removal.

引用

页码：42 / 50

页数：9

共 37 条

[11] Fluoride removal by Donnan dialysis with anion exchange membranes [J].